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Evolutionary Demography of Ecological Change: Linking Trait Variation and Population Growth
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Evolutionary Demography of Ecological Change: Linking Trait Variation and Population Growth
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Journal Article
Evolutionary Demography of Ecological Change: Linking Trait Variation and Population Growth
2007
Overview
Population dynamics and evolutionary change are linked by the fundamental biological processes of birth and death. This means that population growth may correlate with the strength of selection, whereas evolutionary change can leave an ecological signature. We decompose population growth in an age-structured population into contributions from variation in a quantitative trait. We report that the distribution of body sizes within a population of Soay sheep can markedly influence population dynamics, accounting for up to one-fifth of observed population growth. Our results suggest that there is substantial opportunity for evolutionary dynamics to leave an ecological signature and visa versa.
Publisher
American Association for the Advancement of Science,The American Association for the Advancement of Science
Subject
/ Animal, plant and microbial ecology
/ Animals
/ Biological and medical sciences
/ death
/ Ecology
/ Female
/ Fundamental and applied biological sciences. Psychology
/ Hindlimb - anatomy & histology
/ Male
/ Mammalia
/ Quantitative Trait, Heritable
/ Scotland
/ Sheep
/ Sheep - growth & development
/ Soay
/ Weather
